# General

**URL:** https://discourse.nodered.org/c/general/7.md?page=885

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

**Page:** 886

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## [Button shape and button event](https://discourse.nodered.org/t/button-shape-and-button-event/11191)

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**Author:** [@Kwonsoyeong](https://discourse.nodered.org/u/Kwonsoyeong)\
**Replies:** 2\
**Last updated:** [16 May 2019 23:25 UTC](https://discourse.nodered.org/t/button-shape-and-button-event/11191 "2019-05-16T23:25:42Z")

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I want to create a triangular border button that contains an exclamation point. I hope this button disappears when the button is clicked. This is my code at the moment. I do not know what to do. \<style\> .triangle { …

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## [Bigtimer/Light Schedule all day schedule](https://discourse.nodered.org/t/bigtimer-light-schedule-all-day-schedule/5449)

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**Author:** [@johnster80](https://discourse.nodered.org/u/johnster80)\
**Replies:** 18\
**Last updated:** [16 May 2019 22:03 UTC](https://discourse.nodered.org/t/bigtimer-light-schedule-all-day-schedule/5449 "2019-05-16T22:03:04Z")

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Ok so I've been having ome issue with Bigtimer/Schedex/schedule node. What I'm trying to achieve is that I want my lights to start at say 6 am and end when sun has risen. And then start again when sun set until 11.30 pm. …

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## [Developer teams working in only one project](https://discourse.nodered.org/t/developer-teams-working-in-only-one-project/7171)

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**Author:** [@DiegoTelles](https://discourse.nodered.org/u/DiegoTelles)\
**Replies:** 15\
**Last updated:** [16 May 2019 19:09 UTC](https://discourse.nodered.org/t/developer-teams-working-in-only-one-project/7171 "2019-05-16T19:09:57Z")

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Is it possible to work with more than one user logged in? One development team working without overthrowing the other?

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## [ENOENT ping command not found](https://discourse.nodered.org/t/enoent-ping-command-not-found/11030)

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**Author:** [@mike67](https://discourse.nodered.org/u/mike67)\
**Replies:** 9\
**Last updated:** [16 May 2019 18:01 UTC](https://discourse.nodered.org/t/enoent-ping-command-not-found/11030 "2019-05-16T18:01:40Z")

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Hello I have installed the ping contrib on my PLC running node red with the palette. I get an error, even if the contrib is really installed. ENOENT ping command not found \[{"id":"f2f9771f.7cb348","type":"ping","z":"…

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## [Node-red-contrib-s7 | Notes on S7-1200/1500](https://discourse.nodered.org/t/node-red-contrib-s7-notes-on-s7-1200-1500/11220)

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**Author:** [@MaFoB](https://discourse.nodered.org/u/MaFoB)\
**Replies:** 0\
**Last updated:** [16 May 2019 17:29 UTC](https://discourse.nodered.org/t/node-red-contrib-s7-notes-on-s7-1200-1500/11220 "2019-05-16T17:29:51Z")

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Notes on S7-1200/1500 Additionally, the default connection property Rack/Slot 0/2 needs to be changed to Rack/Slot 0/0

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## [Which one to buy, Amazon Echo or Google Home speaker?](https://discourse.nodered.org/t/which-one-to-buy-amazon-echo-or-google-home-speaker/11110)

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**Author:** [@Tsepatek](https://discourse.nodered.org/u/Tsepatek)\
**Replies:** 15\
**Last updated:** [16 May 2019 14:15 UTC](https://discourse.nodered.org/t/which-one-to-buy-amazon-echo-or-google-home-speaker/11110 "2019-05-16T14:15:56Z")

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Hi, I would like to implement speaker with voice control to my Node-RED project and I cannot decide which one to buy. Which one is better? Which one I should buy? Give me Pros and Cons like answer, please.

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## [Global context variables do not display in the Context Sidebar](https://discourse.nodered.org/t/global-context-variables-do-not-display-in-the-context-sidebar/3153)

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**Author:** [@tree-frog](https://discourse.nodered.org/u/tree-frog)\
**Replies:** 112\
**Last updated:** [16 May 2019 13:54 UTC](https://discourse.nodered.org/t/global-context-variables-do-not-display-in-the-context-sidebar/3153 "2019-05-16T13:54:06Z")

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I downloaded/installed Node-Red 0.19.3 and I am using Global Context in my flows. The Flow variables are showing, but the Global variables which are in use and working do not show up in the Global context window. I'm …

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## [Start node-red on boot doesn't find python module in exec node](https://discourse.nodered.org/t/start-node-red-on-boot-doesnt-find-python-module-in-exec-node/11199)

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**Author:** [@elisascheer](https://discourse.nodered.org/u/elisascheer)\
**Replies:** 2\
**Last updated:** [16 May 2019 12:31 UTC](https://discourse.nodered.org/t/start-node-red-on-boot-doesnt-find-python-module-in-exec-node/11199 "2019-05-16T12:31:37Z")

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Hi, I am retrieving values from S7 PLC and passing it as json string argument to a python script. I'm using the exec node to exec the .py script When I launched node-red manually, everything works but when I enable no…

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## [Running arduino code on raspberry inside Node-RED](https://discourse.nodered.org/t/running-arduino-code-on-raspberry-inside-node-red/11052)

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**Author:** [@Orion](https://discourse.nodered.org/u/Orion)\
**Replies:** 6\
**Last updated:** [16 May 2019 12:27 UTC](https://discourse.nodered.org/t/running-arduino-code-on-raspberry-inside-node-red/11052 "2019-05-16T12:27:15Z")

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Hello, I'm totally new to Node-RED, so I would like to ask you what can I do if I have some sensors which I want to read and send measured values via MQTT to another platform. I already have all codes written and workin…

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## [Nodes - Debian 8 (jessie) and Debian 9 (stretch)](https://discourse.nodered.org/t/nodes-debian-8-jessie-and-debian-9-stretch/11097)

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**Author:** [@ScheepersJohan](https://discourse.nodered.org/u/ScheepersJohan)\
**Replies:** 13\
**Last updated:** [16 May 2019 08:01 UTC](https://discourse.nodered.org/t/nodes-debian-8-jessie-and-debian-9-stretch/11097 "2019-05-16T08:01:26Z")

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Hi, I see there are a lot on nodes supported on Jessie but not on Stretch, are there a patch on Stretch to make it support Jessie nodes?

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## [Suggestions wanted for load balancing to multiple servers](https://discourse.nodered.org/t/suggestions-wanted-for-load-balancing-to-multiple-servers/11077)

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**Author:** [@dennishvo](https://discourse.nodered.org/u/dennishvo)\
**Replies:** 10\
**Last updated:** [16 May 2019 00:32 UTC](https://discourse.nodered.org/t/suggestions-wanted-for-load-balancing-to-multiple-servers/11077 "2019-05-16T00:32:26Z")

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I have had a single server in production for more than a year, but I'm reaching the point where I need additional server instances to handle the load. The problem I'm trying to solve is my use of context. I have a databa…

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## [Getting email attachments and sending them to google drive](https://discourse.nodered.org/t/getting-email-attachments-and-sending-them-to-google-drive/11167)

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**Author:** [@stewiethmad](https://discourse.nodered.org/u/stewiethmad)\
**Replies:** 1\
**Last updated:** [15 May 2019 21:11 UTC](https://discourse.nodered.org/t/getting-email-attachments-and-sending-them-to-google-drive/11167 "2019-05-15T21:11:05Z")

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I am new to node-red but it seems like a powerful tool! My question is being relatively new how realistic would it be for me to setup something up like the title suggests? I was browsing a various online solutions but wa…

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## [Newbie - The workspace contains some nodes that are not properly configured](https://discourse.nodered.org/t/newbie-the-workspace-contains-some-nodes-that-are-not-properly-configured/11175)

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**Author:** [@Moondog](https://discourse.nodered.org/u/Moondog)\
**Replies:** 8\
**Last updated:** [15 May 2019 19:08 UTC](https://discourse.nodered.org/t/newbie-the-workspace-contains-some-nodes-that-are-not-properly-configured/11175 "2019-05-15T19:08:57Z")

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I receive the following message when I deploy a simple flow (a switch controlling the output of a Pi gpio): " The workspace contains some nodes that are not properly configured: \[Flow 1\] sw1 (ui\_switch) " Any help w…

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## [Auto password complete](https://discourse.nodered.org/t/auto-password-complete/10875)

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**Author:** [@Mcxty](https://discourse.nodered.org/u/Mcxty)\
**Replies:** 13\
**Last updated:** [15 May 2019 16:41 UTC](https://discourse.nodered.org/t/auto-password-complete/10875 "2019-05-15T16:41:13Z")

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I use my email address as user name in certain nodes for signing into devices. When i come to set up a email node using the same address and email password the password is auto changing on deploy to the password used in…

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## [Pulling projects reloads all flows](https://discourse.nodered.org/t/pulling-projects-reloads-all-flows/11170)

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**Author:** [@joost](https://discourse.nodered.org/u/joost)\
**Replies:** 2\
**Last updated:** [15 May 2019 14:42 UTC](https://discourse.nodered.org/t/pulling-projects-reloads-all-flows/11170 "2019-05-15T14:42:20Z")

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Hi all, First post, so sorry if I'm missing some essentials here. I'm wondering if there is an option to not redeploy all flows when pulling a "project" from the repo. This is a bit of a risk for the currently running …

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## [Dynamic topic for mqtt input](https://discourse.nodered.org/t/dynamic-topic-for-mqtt-input/11157)

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**Author:** [@Jandos](https://discourse.nodered.org/u/Jandos)\
**Replies:** 8\
**Last updated:** [15 May 2019 12:35 UTC](https://discourse.nodered.org/t/dynamic-topic-for-mqtt-input/11157 "2019-05-15T12:35:38Z")

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I already read https://discourse.nodered.org/t/change-mqtt-input-node-topic-name/1864/17, but could not use it. I need an MQTT node, which is able, to subscribe to a variable topic. I want to use it within a flow, so i …

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## [Smart home status application for mobile phone](https://discourse.nodered.org/t/smart-home-status-application-for-mobile-phone/11113)

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**Author:** [@eschava](https://discourse.nodered.org/u/eschava)\
**Replies:** 1\
**Last updated:** [15 May 2019 12:27 UTC](https://discourse.nodered.org/t/smart-home-status-application-for-mobile-phone/11113 "2019-05-15T12:27:16Z")

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Hello all Node-Red users! This topic is created for the discussion of one thing that I miss in Node-Red. On the other hand, such a thing would be useful for any home automation system My home has ~20 sensors and very o…

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## [Nodes to control PC](https://discourse.nodered.org/t/nodes-to-control-pc/11129)

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**Author:** [@Michal666](https://discourse.nodered.org/u/Michal666)\
**Replies:** 1\
**Last updated:** [15 May 2019 08:14 UTC](https://discourse.nodered.org/t/nodes-to-control-pc/11129 "2019-05-15T08:14:36Z")

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Hi, I am new to node red and I was trying to search some nodes to control PC, for example to start chrome and go to netflix page. Could you please help and answer how to achive this ?

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## [Duplicated data](https://discourse.nodered.org/t/duplicated-data/11115)

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**Author:** [@Kwonsoyeong](https://discourse.nodered.org/u/Kwonsoyeong)\
**Replies:** 1\
**Last updated:** [14 May 2019 20:44 UTC](https://discourse.nodered.org/t/duplicated-data/11115 "2019-05-14T20:44:11Z")

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I want to write msg.payload data in my dashboard. I want to put the msg.addr data in the first vertical line and the msg.c\_rate data in the second vertical line. This is the template source I wrote. \<table layout="row"…

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## [Looking for timing nodes](https://discourse.nodered.org/t/looking-for-timing-nodes/11073)

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**Author:** [@awsteve](https://discourse.nodered.org/u/awsteve)\
**Replies:** 2\
**Last updated:** [14 May 2019 18:59 UTC](https://discourse.nodered.org/t/looking-for-timing-nodes/11073 "2019-05-14T18:59:57Z")

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I'm a PLC programmer, so Node-Red is new to me. I'm trying to find some nodes that would be similar to the traditional PLC TON (Timer On-Delay) and TOF (Timer Off-Delay) instructions. Below is an example of the PLC ins…

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## [Change mqtt-input node topic name](https://discourse.nodered.org/t/change-mqtt-input-node-topic-name/1864)

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**Author:** [@zapicoj](https://discourse.nodered.org/u/zapicoj)\
**Replies:** 19\
**Last updated:** [14 May 2019 15:23 UTC](https://discourse.nodered.org/t/change-mqtt-input-node-topic-name/1864 "2019-05-14T15:23:36Z")

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Hi, Is there a way to modify the topic of mqtt input nodes from one script ? and then do a full deployment . I did one script to modify topics in the flow file (from command line), but it’s necessary to stop node-red …

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## [Custom node: chart in my editor](https://discourse.nodered.org/t/custom-node-chart-in-my-editor/10939)

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**Author:** [@Louise](https://discourse.nodered.org/u/Louise)\
**Replies:** 5\
**Last updated:** [14 May 2019 12:36 UTC](https://discourse.nodered.org/t/custom-node-chart-in-my-editor/10939 "2019-05-14T12:36:30Z")

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Hello everybody, You guys helped me so well with my custom nodes so far! In the editor of my node I want to display a dynamic chart whichs depends on the node properties. I have absolutely no idea how to do this. \<!-- \<…

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## [Box.com node: ReferenceError: BoxSDK is not defined](https://discourse.nodered.org/t/box-com-node-referenceerror-boxsdk-is-not-defined/11069)

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**Author:** [@support4S](https://discourse.nodered.org/u/support4S)\
**Replies:** 5\
**Last updated:** [14 May 2019 11:45 UTC](https://discourse.nodered.org/t/box-com-node-referenceerror-boxsdk-is-not-defined/11069 "2019-05-14T11:45:22Z")

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Dear readers, I'm trying to connect my Node-RED with the box.com node. I follow the steps from the next link: https://github.com/watson-developer-cloud/node-red-labs/tree/master/utilities/box\_setup But after "Grant a…

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## [UDP Send and receive when using node red in docker container](https://discourse.nodered.org/t/udp-send-and-receive-when-using-node-red-in-docker-container/11114)

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**Author:** [@echtelerp](https://discourse.nodered.org/u/echtelerp)\
**Replies:** 3\
**Last updated:** [14 May 2019 11:21 UTC](https://discourse.nodered.org/t/udp-send-and-receive-when-using-node-red-in-docker-container/11114 "2019-05-14T11:21:18Z")

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Hi There, I'm trying to send and receive massages via UDP with two Node-Red instances installed via Docker containers. Flows on instance 1: \[ { "id": "3affecfb.85c07c", "type": "inject", "z…

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## [Raspberry Pi 3 USB camera for filming](https://discourse.nodered.org/t/raspberry-pi-3-usb-camera-for-filming/11107)

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**Author:** [@anon4382222](https://discourse.nodered.org/u/anon4382222)\
**Replies:** 2\
**Last updated:** [14 May 2019 10:59 UTC](https://discourse.nodered.org/t/raspberry-pi-3-usb-camera-for-filming/11107 "2019-05-14T10:59:21Z")

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Hi, Any ideas how I can let my usb camera film for a specific amount of seconds and then save it to a map on my Pi? I am now using USB camera node to take pictures but instead of pictures I want it to make a short video…

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## [Getting Data from a String](https://discourse.nodered.org/t/getting-data-from-a-string/11072)

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**Author:** [@llamedos](https://discourse.nodered.org/u/llamedos)\
**Replies:** 3\
**Last updated:** [14 May 2019 10:40 UTC](https://discourse.nodered.org/t/getting-data-from-a-string/11072 "2019-05-14T10:40:30Z")

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I need some help! I am not a developer but I have used node red for a solar monitor and it is working great. I have purchased a WiFi temperature monitor that has an API, which it is giving me in a string format (See Belo…

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## [Err\_spdy\_protocol\_error 200](https://discourse.nodered.org/t/err-spdy-protocol-error-200/11024)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 8\
**Last updated:** [14 May 2019 08:31 UTC](https://discourse.nodered.org/t/err-spdy-protocol-error-200/11024 "2019-05-14T08:31:38Z")

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Increasingly, whenever I open the node-RED editor (v0.20.5) the editor page opens fine, but the flows are missing, and I have a blank workspace as per the screenshot below. Quite often reloading the page (F5) restores t…

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## [Request interceptor](https://discourse.nodered.org/t/request-interceptor/11098)

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**Author:** [@safrazhanas](https://discourse.nodered.org/u/safrazhanas)\
**Replies:** 0\
**Last updated:** [14 May 2019 06:41 UTC](https://discourse.nodered.org/t/request-interceptor/11098 "2019-05-14T06:41:58Z")

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I'm using node-red 0.20.0 as embedded. i need to set request header for every request. i modified red.js (before server.listen) as below app.use(function(req, res, next) { console.log('##############################…

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## [Control Arduino Uno](https://discourse.nodered.org/t/control-arduino-uno/11081)

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**Author:** [@Jason223](https://discourse.nodered.org/u/Jason223)\
**Replies:** 1\
**Last updated:** [13 May 2019 23:49 UTC](https://discourse.nodered.org/t/control-arduino-uno/11081 "2019-05-13T23:49:17Z")

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I'm trying to control solenoids (on and off control) via Arduino Uno with Node-Red and Firmata, but don't want to use the injection button as is demonstrated in most examples. What other nodes are capable of interfacing …

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## [Influx DB Out node with two databases](https://discourse.nodered.org/t/influx-db-out-node-with-two-databases/11057)

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**Author:** [@HaVi](https://discourse.nodered.org/u/HaVi)\
**Replies:** 5\
**Last updated:** [13 May 2019 15:30 UTC](https://discourse.nodered.org/t/influx-db-out-node-with-two-databases/11057 "2019-05-13T15:30:22Z")

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Using two databases from one Node-RED installation I discover an issue, maybe someone can help me. Running MQTT, InfluxDB and Node-RED on a RPi with IP-addres xxx.xxx.xxx.160 I can set the Influx DB Out Node to write to…

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